Why did Yes stop playing sides 2 and 3 of Tales From Topographic Oceans? 478

It’s been a week for thinking deeply...or maybe not. Anyway, Mark and I have been listening to the oft maligned sides 2 and 3 of Tales from Topographic Oceans which have not been played as often as sides 1 and 4. 'Why not?' I hear you cry. Or maybe I don’t. In any case, that’s what we will be banging on about in this episode.